diff --git a/crates/open_ai/src/open_ai.rs b/crates/open_ai/src/open_ai.rs
index 279245c0b7..fda0544be1 100644
--- a/crates/open_ai/src/open_ai.rs
+++ b/crates/open_ai/src/open_ai.rs
@@ -473,7 +473,7 @@ pub async fn stream_completion(
             .filter_map(|line| async move {
                 match line {
                     Ok(line) => {
-                        let line = line.strip_prefix("data: ")?;
+                        let line = line.strip_prefix("data: ").or_else(|| line.strip_prefix("data:"))?;
                         if line == "[DONE]" {
                             None
                         } else {